Current U.S. and EU ethanol mandates have already produced two huge food-price spikes in the past three years, causing political unrest around the world
CHURCHVLLE, VA—A new study from the University of Illinois estimates that the world has more than 702 million hectares of marginal land suitable for growing biofuels. The researchers assessed land around the world based on its soil quality, slope, and regional climate. They added degraded or low-quality cropland but ruled out any good cropland, pasture, or forests; they also assumed no irrigation. They came up with the surprising total 2.7 million sq. miles of marginal land that could be available for switchgrass or other biofuel crops.
